Pictures of the Day: Tuesday, Apr. 20, 2010

A passenger arrives at the T4 Barajas airport in Spain. With many European countries blanketed in ash, Spain has offered to let stranded passengers use its airports as stopover destinations.
Daniel Ochoa de Olza / AP

Delayed

A passenger arrives at the T4 Barajas airport in Spain. With many European countries blanketed in ash, Spain has offered to let stranded passengers use its airports as stopover destinations